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Seat device

a seat and seat technology, applied in the field of seat devices, can solve the problems of large gap generation and deterioration of the conformability of the passenger sitting, and achieve the effect of preventing such conformability deterioration

Inactive Publication Date: 2010-04-27
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a seat device that can prevent the seat back from reclining too far forward, which can cause discomfort for passengers. The seat device includes a rotational mechanism, a tilt mechanism, and a linkage mechanism that work together to move the seat cushion forward and upward as the seat back reclines. This prevents the seat face from becoming too large a gap and ensures proper support and holding for the passenger. The linkage mechanism includes a link that moves longitudinally in response to the rotation of the seat back, and the tilt mechanism moves the front portion of the seat cushion vertically to change the inclination of the seat face. The seat device is designed to provide a comfortable and secure seating experience for passengers.

Problems solved by technology

Hence, in a case where the seat back is rotated rearward greatly (taking a large reclining position), a large gap may be generated between the lower end of the seat back and the rear end of the seat cushion, so there is a concern that part of the buttocks of the passenger would be caught in this gap and thereby the conformability of the passenger seated would deteriorate.

Method used

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Embodiment Construction

[0041]Hereinafter, preferred embodiments of the present invention will be described referring to the accompanying drawings. The present invention should not be limited to the below-described embodiments, which just exemplify preferable specific example. It should be also understood that even though the embodiments are separately described, single features thereof may be combined to additional embodiments.

[0042](Entire Structure of Seat Device)

[0043]FIG. 1 shows an embodiment in which a seat device according to the present invention is applied to a reclining type of seat 1 that is disposed to the left of a rear portion of an automotive vehicle. A seat cushion 2 of the seat 1, on which a passenger is seated, is attached on a vehicle floor via a base frame 3 (see FIG. 3). An ottoman 4 (a stand on which a foot is placed) is provided to be storable at a front lower portion of the seat cushion 2. A seat back 5 is provided so as to extend upward from a rear end portion of the seat cushion ...

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PUM

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Abstract

A tilt mechanism portion is connected to an front downward-extending portion of a side frame (cushion side fame) of a seat cushion so as to move vertically the seat cushion. A rear downward-extending portion of the cushion side frame is supported at a support pin of a base side frame. Thereby, the rear end of the seat cushion changes little longitudinally despite the vertical movement (tilt) of the front portion of the seat cushion. Accordingly, any conformability deterioration that may be caused by a large forward movement of the seat cushion at a seat back taking a large reclining position can be prevented properly.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a seat device in which an inclination of a seat face can change in accordance with a rearward rotation of a seat back.[0002]A seat device for an automotive vehicle, for example, in which the seat cushion is moved when the seat back is rotated rearward (reclining) from its specified standard position corresponding to a normal seat position in such a manner that the inclination of the seat face of the seat cushion changes, is known (see Japanese Patent Laid-Open Publications 62-192114, 06-245837, for example). Herein, in general, the rotational movement of the seat back is mechanically conveyed to the seat cushion, thereby moving the seat cushion (tilting, swinging). Thus, the inclination of the seat face is changed so as to prevent the buttocks of the passenger seated from sliding forward improperly on the seat face.[0003]Herein, the above-described conventional seat device has the following problem. The seat cushion i...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A47C1/00
CPCB60N2/181B60N2/206B60N2/22B60N2/34B60N2/3065B60N2/309B60N2/305
Inventor NAKAYA, KOUICHINAKANO, KOUSEI
Owner MAZDA MOTOR CORP
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